Temperature and Humidity 'Navaho' blackberry plants are winter hardy to zone 6 and tolerate the heat and humidity of Southern gardens. In hot climates, harvest fruit in the morning and refrigerate ...

The more I looked, the more blackberries I found. They’re everywhere. It eventually dawned on me that the long woody runners I had removed were years’ worth of old blackberry canes.

'Navaho' blackberry plants are winter hardy to zone 6 and tolerate the heat and humidity of Southern gardens. In hot climates, ... They may be dying back or appear woody.